| Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2017: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2016: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2015: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
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| Outline of Final Research Achievements |
The aim of the present study was to establish a pulp diagnosis method based on the detection of pulp blood flow. For this purpose, a custom-made dental-pulp-selective blood flowmeter blood flowmeter was designed to display simultaneously 1) power spectrum produced by Doppler frequency shift of the pulpal blood flow and 2) blood flow signals. The prototype blood flow meter showed the frequency shift less than 10-15 KHz produced by Doppler shift reflecting pulp blood flow. The blood flow meter detected pulsatile blood flow signals from human vital dental pulp. The results showed the possible blood flow measurement suitable for each individuals.
Furtherrmore, a green semiconductor laser was examined as a light source of the laser Doppler blood flow measurement. Although pulsatile blood flow signals from the dental pulp have not recorded, yet, the prototype blood flow meter with green laser light source detected the blood flow change of fingertip of the subject.
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